solvespace
OpenJSCAD.org
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solvespace | OpenJSCAD.org | |
---|---|---|
69 | 12 | |
3,005 | 2,521 | |
1.2% | 2.4% | |
7.0 | 6.0 | |
4 days ago | 17 days ago | |
C++ | JavaScript | |
GNU General Public License v3.0 only | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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solvespace
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Ask HN: What rabbit hole(s) did you dive into recently?
Can second this!
However, I would recommend https://solvespace.com! It hits a sweet spot between features vs complexity/learning effort.
- My favorite code comment/rant
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Why large companies and fast-moving startups are banning merge commits
We use rebase on solvespace, along with sensible squashing so most commits along master are pretty self contained. You can see the clean history here:
https://github.com/solvespace/solvespace/commits/master/
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A one line code change inside iOS made me waste 5 minutes
I changed a behavior to the "more standard" one because it felt obviously right. This was a 3 line change. But the was enough backlash right there in the pull request. So I spent a couple hours remembering how to add a configuration option to keep the old way for those guys:
https://github.com/solvespace/solvespace/pull/1425
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RattleCAD
> If you like Linkage, you might also like Solvespace.
No, I mean Brent Curry's Linkage[1] bicycle design software, not David Rector's Linkage Mechanism Designer and Simulator[2].
You should read Wikipedia article.[0]
N.B. About SolveSpace, as I'm its experienced user[youtube,patreon], I may say next: yes, it could be used for bike mockup, as any other CAD, but it still has a lot of limitations and even does not export correct STEP files yet[3], and in FreeCAD such STEP could fixed only partially.[video]
So, for serious 3D CAD work I highly recommend use FreeCAD (and LibreCAD for 2D CAD work) instead of SolveSpace, and use SolveSpace only as a helper tool like a calc or as a notepad for noting ideas.
About Linkage Mechanism Designer and Simulator, it is only useful for planar (2D) kinematics analyze, and if You are looking an alternative for it take a look on Pyslvs[4], that is in part based on SolveSpace's solver.
[0] https://en.wikipedia.org/wiki/rattleCAD#History
[1] https://bikechecker.com/
[2] https://blog.rectorsquid.com/linkage-mechanism-designer-and-...
[3] https://github.com/solvespace/solvespace/issues/206
[4] https://github.com/KmolYuan/Pyslvs-UI
[video] https://www.youtube.com/watch?v=F3LJMeqUDrU
[youtube] https://www.youtube.com/@appsoft
[patreon] https://patreon.com/app4soft
- SolveSpace has been ported to Qt
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Ask HN: What are some of the most elegant codebases in your favorite language?
C++ this file covers all the math for working with NURBS curves and surfaces:
https://github.com/solvespace/solvespace/blob/master/src/srf...
There is a lot more in other files - triangulation, booleans, creation - but the core math functions are there in very readable form.
- My favorite rant in a code comment (on OpenGL compatibility)
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The Great CPU Stagnation
>> Maybe somebody has statistical survey of how much of the existing deployed CPU core count is typically used?
My guess is very few cores are used on average. I did some testing with Solvespace to see which build options contributed most to performance:
https://github.com/solvespace/solvespace/issues/972
Obviously using OpenMP for multi-core was the big win. But what's not shown is that in typical usage (not the test I ran) if you're dragging some geometry around it will use all cores (in my case 4 cores / 8 threads) at about 50 percent utilization. That percentage probably drops as more cores are thrown at it due to Amdahl's Law. In other words, throwing double the cores at it will give a good boost to a lot of code that is already taking less than half the time (wall clock time, not CPU time).
We added OpenMP to a number of functions for significant performance gains. And in fact, any remining single-thread operation that gets the parallel treatment is likely to have a significant impact on overall performance since that is where most of the time is spent now. At this point we're more focused on features and bugs.
Algorithmic improvements are possible and I'd like to do those in the future, but they are much harder to do than sprinkling some #pragmas around critical loops. That will improve the scalability though, where multithreading really did not.
- Free, mac compatible, relatively easy CAD/CAM software?
OpenJSCAD.org
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A blocky based CAD program
its uses https://github.com/jscad/OpenJSCAD.org library to create the 3d model
- Is there some way to implement a web-based customizer?
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Procedural CAD Modelling tools for WebGL
then there are 2 others, sop/CSGboolean and sop/CADboolean. CSGBoolean is indeed based on CSG, and uses jscad. And the CAD one (which I show in the video in this post) is based on opencascade, which is the most powerful/stable. Then the output of both of those nodes is converted to threejs in order to be displayed in webgl.
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Is there a way to share a network drive or a folder over the internet?
That being said, https://github.com/jscad/OpenJSCAD.org sounds like a winner for your requirement of NOT having to download a file across the internet.
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Show HN: Replicad, the Library for CAD in the Browser
this looks very nice. i think i like the ergonomics of your library... the "sketch on a plane then extrude" workflow feels nice and familiar.
could you compare and contrast replicad to JSCAD (https://openjscad.xyz)?
the examples in your docs are quite sluggish to load in Safari, but the workbench is very snappy!
- Marrying OpenSCAD and Go
- advantages over JSCAD?
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10 ways to get the best out of OpenSCAD
No one has mentioned OpenJSCAD, which is the same idea in Javascript: http://openjscad.azurewebsites.net/
https://github.com/jscad/OpenJSCAD.org/tree/V2
A fairly substantial rewrite is underway, the V2 branch linked above.
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Code CAD – Use code to create CAD models
- Browserify to bundle the design into a website. Directly from the source CAD files, without rendering to a huge mesh file format.
It's cool because you get access to the whole javascript ecosystem, and it's native to the browser.
https://openjscad.xyz/
- Support for Javascript?
What are some alternatives?
cadquery - A python parametric CAD scripting framework based on OCCT
three.js - JavaScript 3D Library.
Autodesk-Fusion-360-for-Linux - This is a project, where I give you a way to use Autodesk Fusion 360 on Linux!
SolidPython - A python frontend for solid modelling that compiles to OpenSCAD
blender-cad-tools - a collection of Blender addons to make CAD design with Blender even more enjoyable
FreeCAD_assembly3 - Experimental attempt for the next generation assembly workbench for FreeCAD
BOSL2 - The Belfry OpenScad Library, v2.0. An OpenSCAD library of shapes, masks, and manipulators to make working with OpenSCAD easier. BETA
LibreCAD - LibreCAD is a cross-platform 2D CAD program written in C++17. It can read DXF/DWG files and can write DXF/PDF/SVG files. It supports point/line/circle/ellipse/parabola/spline primitives. The user interface is highly customizable, and has dozens of translations.
oce - OpenCASCADE Community Edition (OCE): a community driven fork of the Open CASCADE library.
DesignSpark-Mechanical-for-Linux
CascadeStudio - A Full Live-Scripted CAD Kernel in the Browser